SSC Ecology And Environment Sample Paper NCERT Sample Paper-3

  • question_answer
    Which of the following are correctly matched?
    1. Arsenic poisoning - black-foot disease
    2. Secondary effluent treatment - biological process
    3. Pyrolysis - solid soil waste disposal
    4. Tubifex - water pollution indicator
    5. Bio magnification - degradable pollutants

    A)  1, 2, 3 and 5    

    B)  1, 3, 4 and 5

    C)  2, 3, 4 and 5    

    D)  1, 2, 3 and 4

    Correct Answer: D

    Solution :

    [d] Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, animals or humans.


You need to login to perform this action.
You will be redirected in 3 sec spinner